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(No Model.) v 3 Sheets-Sheet 1. J. P. APPLBBY.

GRAIN BINDER. i No. 332,986. Patented Deo. 22, 1885.

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J. P. APPLEBY.

l y GRAIN BINDER. No. 332,986. Patented Dec. 22, 1885.

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J. F. APPLEBY.

GRAIN BINDER.

No. 882,888. Patented D80. 22, 1885.

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* UNITED TATES PATENT OFFICE.

JOHN F. APPLEBY, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR TO THE MINNEAPOLISHARVESTER WORKS, OF SAME PLACE.

GRAIN-BINDER.

SPECIFICATION forming part of Letters Patent No. 332,986, dated December22, 1885.

Application tiled October 28, 1884. Serial No. 146,652. (No model.)

To all whom it may concern:

Be it known that I, JOHN F. APPLEBY, a citizen of the United States,residing at Minneapolis, in the county of Hennepin and State ofMinnesota, have invented certain new and useful Improvements inGrain-Binders; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled-in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to lettersor figures of reference marked thereon, which form a part of thisspecification.

My present invention relates to improvements in that type ofself-binders in which the tripping devices or means employed to throwthe binder-driving mechanism into action on the sheaf binding anddischarging mechanisms are operated from the packerarms or other deviceswhich press the grain down into the gavel-collecting receptacle.

My invention has for its object to render the trip mechanism,which isactuated by the packer-arms, so sensitive at the given time totheresistance of the grain to the packer-arms, and so prompt in itsmovements as to make the tripper certain in its action, whereby wet ortangled grain or other causes are not liable to operate it too soon, andthus produce sheaves of too small size, and whereby other causes willnot prevent its prompt action at the proper time, and thus produce toolarge sheaves,and bring unnecessary strain on the binding devices.

One type of binders to which my invention relates is shown in UnitedStates Letters Patent No. 264,602, issued to me September 18, 1882, andI have chosen parts of the binder shown and described in said LettersPatent for the purpose of illustrating my present invention, and saidpatent may be referred to for a fuller description of such parts as areshown and their operations fully described therein, and hence need notbe further herein described than will be necessary to a readycomprehension of the nature and operation of my improvements inconnection therewith.

In my former patent hereinbefore referred tothe sliding yoke whichslides on the driveshaft of the binder mechanism is forcedaway shapedends for the purpose will slide between the projections from thedrive-wheel and said arms, and thereby yield with greater promptness andcertainty to the resistance offered the packer-arms by the gavel when it(the gavel) has become of the size required and given by the adjustmentof the binder mechanism in the well-known manner.

My invention further consists in improvements in the means used fortransmitting motion from the sliding sleeve on the drive-shaft to therock-shaft, which is designated by the reference-letter e2 in myaforesaid patent, all as hereinafter described.

In the accompanying drawings, Figure 1 A is a top plan of my inventionand adjacent parts of a grain-binder. Fig. 2 is a front end elevation.Fig. 3 is a side elevation. Fig. 4 is a perspective lshowing thesprocket drivewheel and the clutching mechanism. Fig. 5 is an elevationof parts shown at Fig. 4. Fig. 6 is a top plan of my improvement,showing the parts in different relative positions from that shown atFig. 5. Fig. 7 isaperspective of the sliding yoke.

In the several gnres of the drawings, and in order that the drawings maybe fully understood, the same referenceletters are used to designate thesame parts as in my patent No. 264,602, except the parts of my presentinvention, which are designated by reference-letters not used in saidpatent, and in which the same reference-letter designates the same partin all the figures where used.

D is the main driving-shaft of the binder mechanism, and is continuouslyrotated while .the machine is in operation by a chain passed around thesprocket-wheel E and around a driving sprocket-wheel mounted on a mainshaft (not shown) of the harvester. The sprocket-wheel E is looselymounted on the shaft D, and is connected with said shaftD so as torotate it, as hereinafter described. The shaft D is provided with cranksG G, which IOO operate the packers B B in the ordinary manner. The shaftD, with its cranks G and wheel E, is operated as shown and described inmy aforesaid patent, as is also thetrip lever or arm a., which has to beslightly lifted atits upper or free end in order to liberate thespring-dog b, that rests on the said end of said lever a, for thepurpose of clutching the driveA pi-nion ofshaft D, which is normallyloose on the shaft that operates the devices for binding and tying anddischarging the sheaf.

I? is a yoke, mounted on the shaft D and made to rotate therewith, whileit can slide lengthwise of said shaft by means of a feather, p', whichprojects from the hub of the yoke into a groove, t, inthe sha-ft D. Thearms of the yoke P extend radially from the shaft D, and their ends 1Jare bent and are parallel or about parallel with the axis of said shaft,and are tapering or wedge shaped, as shown. Lugs 1)12 project one fromeach radial arm of the clutch P,being one at each side of the shaft- D.The yoke P is pressed or forced toward the wheel E by a strong spiralspring, m, which encircles the shaft D, and the yoke is forced in theopposite direction by the mechanism now to be described.

From the face of the wheel E which is foward the yoke P project twostuds, l, located at diametricallyopposite points on said wheel, andeach provided at its outer end with axial bearings for an anti-frictionroller, 2.

R R are arms projecting from the shaft D between the wheel E and theradial arm of yoke P. I have shown the arms R as connected and iiXedrigidly to the shaft D by means of a feather, r, and groove, as seen atFig. 7; but they may be rigidly connected with said shaft in any desiredmanner. The end of each arm It is bent toward the wheel E and providedwith an axial bearing for an antifriction roller, r. The anti-frictionrollers r are in or about in the same circumferential plane withreference to the shaft D as are the similar' rollers 2.

While the yoke P is in its normal position or pressed toward the wheel Eby the spring m its wedgeshaped ends p rest one between each of therollers 2 and r', and the other between t-he other rollers 2 and o", asshown most plainly at Figs. 5 and 6.

In describing the operation of my present invention it is not deemednecessary to describe the operation of the packers or other parts of thebinder.

The continuous rotation of the wheel E will continuously rotate 'theshaft D by means of the rollers 2, acting on the wedge-shaped ends 19 ofthe yoke P, and when the grain in the grain-receptacle has increased tothe given quantity necessary to offer a given resistance to the forwardmovement ofthe points of the packers it will tend to retard the shaftand also the yoke P revolving therewith, and thereby cause the roller 2to force the wedgeshaped ends p of the yoke P with increased forceagainst the roller r', and thus cause the yoke P to yield lengthwise ofthe shaft, as shown by dotted lines at Fig. l,and thereby bring one orthe other of the lugs Win-contact with the arm d', which is rigidyconnected with and projects radi-ally from the rock-shaft e2, and by itsaction on said arm partially rotate said shaft e2, and thereby operatethe trip.- lever ci and the devices for binding, tying, and dischargingthe sheaf, as shown and described in my patent hereinbefore referred to.As soon as the sheaf is discharged the resistance to the packers ceases,and the spring m will force the yoke P back toward the wheel to theposition shown by full lines in the drawings. There being no connectionbetween the yoke P and the arm d, and the yoke being geared with thewheel E, as it is, will move out of contact with the arm d' promptlywhen the'.

resistance of the grain to the packers ceases, and the yoke will moveinto contactwith said arm when the proper resistance of the grain to thepackers is reached, promptly, and thus form sheaves of uniform size, andresist strains and interference with regularity of binding by wet ortangled grain and from other causes.

All subject-matter shown in the drawings and described in thisspecification not perf taining to the particular tripping device hereinclaimed is hereby disclaimed in this application.

It will be readily seen that one arm of the yoke P may be dispensedwith, and also the adjacent arm R, and the adjacent stud l and itsroller 2; but I prefer to use the device with YIco all of these parts,as shown and described; and l I do not limit my claims to the use of thetwothrowing the binding, tying, and sheafdischarging mechanism intooperation, in combination with a loose sprocketwheel, E, theconstantly-revolving shaft D, and the packers, a sliding yoke, P, onshaft D provided with wedge-shaped ends arranged to stand betweenprojections from the wheel E and arms fixed to the shaft D and providedwith lugs p, an arm projecting from the shaft e2, and a spring adaptedto force said yoke away from the arm on the shaft e2, substantially asand for the purpose specified.

2. In a grain-binder of the type herein described, in combination, theshaft. D, carrying the packers, a wheel, E, having lugs l,

and lugs p, adapted to coaet with the arm d on the shaft e, and aspring, m, substantially as and for the purpose specified.

3. In a grainbinder of the type herein ,I

specified, in combination with the sprocket wheel, E, loosely mounted onthe shaft D,and i the arms R, fixed to the shaft D, a sliding] yoke, P,having tapering or Wedge -shaped arms adapted to coact with the Wheel Eand fixed arms R, substantially. as and for the purpose specified.

4. In a grain binder of the type herein specified, in combination, theshaft D, carrying the packers, Wheel E, having vprojections l, andsliding yoke P, adapted to coact with a projection from the shaft e2,substantially as and for the purpose specified.

5. In a grain binder of the type herein specified, the combination oftheshaft D, packers G,and a sprocket-wheel, E,loosely mounted on the shaftD, and adapted to act on one side of the Wedge-shaped armsp of the yokeP, and press their other sides against projections from the shaft D,whereby the yoke will be forced away from the wheel to cause it toengage With a projection from the shaft e?, substantially as and for thepurpose specified.

6. In a grain binder of the type herein specified, the combination, withthe packing arm or arms and the trip-lever, of an intermediate mechanismfor causing the said arm or arms to actuate the said lever, composed,essentially, of a drive-Wheel mounted loosely on the drive-shaft of saidpacking arm or arms, a sliding` yoke mounted to slide on said shaft andheld in close relation with the said Wheel by a spring and provided withWedge-shaped or tapering arms adapted to coact with said Wheel, and armsprojecting from said drive-y shaft and provided also with projectionsadapted when the yoke is shifted to communicate motion to the triplever, substantially as and for the purpose specitiedn JOHN F. APPLEBY.

Witnesses:

C. M. CASTLE, HENRY HoNKoMP.

